Linear accelerator with energy spectrum CT function, control methods and storage medium

Abstract

The invention discloses a linear accelerator with an energy spectrum CT function, a control method and a storage medium. The linear accelerator comprises an accelerator treatment system and an energy spectrum CT system, the accelerator treatment system comprises an accelerator main rotating rack and an accelerator treatment head, the energy spectrum CT system comprises a CT slip ring rotating rack, a CT bulb tube and a CT arc detector, and the CT slip ring rotating rack can rotate around the central axis of the CT slip ring rotating rack. The invention discloses a specific structure and three control methods of the linear accelerator. An imaging device can be used for obtaining a diagnosis-level CT image, various clinically required functional images are obtained by using an energy spectrum CT function, and the aim of further subdividing and identifying a tumor is achieved. In addition, by means of the added set of imaging system hardware, the aim of guiding the accelerator to conduct treatment in real time through the CT image is achieved through the control method provided by the invention.

Description

technical field [0001] The invention belongs to the technical field of accelerator radiation therapy, and in particular relates to a linear accelerator with energy spectrum CT function, a control method and a storage medium. Background technique [0002] An important development direction of modern cancer treatment is precision radiotherapy, which is realized by using appropriate imaging technology to guide the high-energy radiation beam used for treatment to hit the tumor target area that needs to be irradiated accurately, which can not only kill tumor cells well , can better protect the surrounding key organs from radiation damage. Spectral CT is a relatively high-end CT imaging method invented in recent years. It is an inspection method that uses substances to produce different absorptions of X-rays with different energies. CT scanning is performed on irradiated substances, and the difference in X-ray attenuation values ​​produced by the scanned substances under differen...

AI Technical Summary

Problems solved by technology

The two imaging systems work independently, and can only obtain conventional CBCT images, because they use conventional imaging methods, which have the disadvantage of not being able to distinguish material composition

Cone beam CBCT imaging is inherently vulnerable to scattered rays, resulting in poor imaging quality compared to diagnostic-grade fan-beam FBCT imaging, which cannot meet the clinical needs of high-definition images

Existing accelerators do not have the function of spectral CT, and cannot perform more detailed diagnosis and analysis of tumors

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